a575963da9
Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14
181 lines
5.0 KiB
C#
181 lines
5.0 KiB
C#
//
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// ChtmlTextWriter.cs: Compact HTML
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//
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// Author:
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// Cesar Lopez Nataren <cnataren@novell.com>
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//
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//
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// Copyright (C) 2006-2010 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.IO;
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using System.Collections;
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namespace System.Web.UI {
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public class ChtmlTextWriter : Html32TextWriter
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{
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static Hashtable global_suppressed_attrs;
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static string [] global_suppressed_attributes = {
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"onclick", "ondblclick", "onmousedown", "onmouseup",
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"onmouseover", "onmousemove", "onmouseout",
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"onkeypress", "onkeydown", "onkeyup"
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};
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static string [] recognized_attributes = {"div", "span"};
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Hashtable recognized_attrs = new Hashtable (recognized_attributes.Length);
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Hashtable suppressed_attrs = new Hashtable (recognized_attributes.Length);
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static ChtmlTextWriter ()
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{
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SetupGlobalSuppressedAttrs (global_suppressed_attributes);
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}
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static void SetupGlobalSuppressedAttrs (string [] attrs)
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{
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global_suppressed_attrs = new Hashtable ();
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PopulateHash (global_suppressed_attrs, global_suppressed_attributes);
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}
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static void PopulateHash (Hashtable hash, string [] keys)
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{
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foreach (string key in keys)
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hash.Add (key, true);
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}
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public ChtmlTextWriter (TextWriter writer)
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: this (writer, DefaultTabString)
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{
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}
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public ChtmlTextWriter (TextWriter writer, string tabString)
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: base (writer, tabString)
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{
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//
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// setup the recognized attrs
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//
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foreach (string key in recognized_attributes)
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recognized_attrs.Add (key, new Hashtable ());
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SetupSuppressedAttrs ();
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}
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void SetupSuppressedAttrs ()
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{
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//
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// we don't make these static because they are not read-only
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//
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string [] div_suppressed_attributes = {
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"accesskey", "cellspacing", "cellpadding",
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"gridlines", "rules"
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};
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string [] span_suppressed_attributes = {
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"cellspacing", "cellpadding",
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"gridlines", "rules"
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};
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Init ("div", div_suppressed_attributes, suppressed_attrs);
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Init ("span", span_suppressed_attributes, suppressed_attrs);
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}
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static void Init (string key, string [] attrs, Hashtable container)
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{
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Hashtable attrs_hash = new Hashtable (attrs.Length);
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PopulateHash (attrs_hash, attrs);
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container.Add (key, attrs_hash);
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}
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protected Hashtable GlobalSuppressedAttributes {
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get { return global_suppressed_attrs; }
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}
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protected Hashtable RecognizedAttributes {
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get { return recognized_attrs; }
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}
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protected Hashtable SuppressedAttributes {
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get { return suppressed_attrs; }
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}
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public virtual void AddRecognizedAttribute (string elementName, string attributeName)
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{
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Hashtable elem_attrs = (Hashtable) recognized_attrs [elementName];
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if (elem_attrs == null) {
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elem_attrs = new Hashtable ();
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elem_attrs.Add (attributeName, true);
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recognized_attrs.Add (elementName, elem_attrs);
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} else
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elem_attrs.Add (attributeName, true);
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}
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public virtual void RemoveRecognizedAttribute (string elementName, string attributeName)
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{
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Hashtable elem_attrs = (Hashtable) recognized_attrs [elementName];
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if (elem_attrs != null)
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elem_attrs.Remove (attributeName);
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}
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//
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// writes <br>
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//
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public override void WriteBreak ()
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{
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string br = GetTagName (HtmlTextWriterTag.Br);
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WriteBeginTag (br);
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Write (TagRightChar);
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}
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public override void WriteEncodedText (string text)
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{
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base.WriteEncodedText (text);
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}
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Hashtable attr_render = new Hashtable ();
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protected override bool OnAttributeRender (string name, string value, HtmlTextWriterAttribute key)
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{
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// FIXME:
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// I checked every possible HtmlTextWriterAttribute key
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// and always throws ArgumentNullException.
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return (bool) attr_render [null];
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}
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protected override bool OnStyleAttributeRender (string styleAttrName, string value, HtmlTextWriterStyle key)
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{
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return key == HtmlTextWriterStyle.Display;
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}
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protected override bool OnTagRender (string name, HtmlTextWriterTag tag)
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{
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return tag != HtmlTextWriterTag.Span;
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}
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}
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}
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